G.f. A(x) satisfies A(x) = 1/( (1+x) * (1 - x*A(x) - 2*x^2*A'(x)) ).
A386266
G.f. A(x) satisfies A(x) = 1/( (1+x) * (1 - x*A(x) - 2*x^2*A'(x)) ).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =5a(4) =41a(5) =414a(6) =5029a(7) =71154a(8) =1148369a(9) =20813552a(10) =418536501a(11) =9247315593a(12) =222692887441
External references
- oeis: A386266